firmware upgrade

My door station either doesn't ring on my phone via HikConnect unless the app is actually open. I'm using an Android phone. Notifications are on in phone settings, call notifications are on in HikConnect. I can see a call log and video recordings in the app. The indoor stations work OK. I've...

Hi there, I am currently using firmware V4.21.005 build 190509 on my DS-7716NI-K4 / 16P which I believe was the pulled/buggy version of the firmware. Please can you advise the best upgrade path to upgrade from V4.21.005 build 190509 to V4.30.061 build210313 ? Many thanks, Epipen.

Hi there, I have my ds-2cd2532f-i mini dome camera's on firmware version 5.1 and looking to update them to the latest version available. Please could you confirm if the below link is the correct firmware to use in the UK? Link to Firmware Cheers, Epipen

Hi, Please could you confirm if firmware version V4.21.005 build190509 will work on the DS-7716NI-K4 / 16P ? Firmware link here Link to article My system is the UK version. Cheers, Epipen

I have a Hikivision ds-2cd2032-i with on old firmware version 5.0.0 130830. I have access to an older laptop with an old IE version which allows me to use the plug in. However, I am having difficulty upgrading the firmware to 5.3.0. Is this because I am skipping too many upgrades in between...